diff options
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 74641151880..08e0140920e 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -104,6 +104,24 @@ config ACPI_SYSFS_POWER help Say N to disable power /sys interface +config ACPI_EC_DEBUGFS + tristate "EC read/write access through /sys/kernel/debug/ec" + default n + help + Say N to disable Embedded Controller /sys/kernel/debug interface + + Be aware that using this interface can confuse your Embedded + Controller in a way that a normal reboot is not enough. You then + have to power of your system, and remove the laptop battery for + some seconds. + An Embedded Controller typically is available on laptops and reads + sensor values like battery state and temperature. + The kernel accesses the EC through ACPI parsed code provided by BIOS + tables. This option allows to access the EC directly without ACPI + code being involved. + Thus this option is a debug option that helps to write ACPI drivers + and can be used to identify ACPI code or EC firmware bugs. + config ACPI_PROC_EVENT bool "Deprecated /proc/acpi/event support" depends on PROC_FS |